Updated the zh_CN.lang file,hope to fix the issue #41.

Also removed all the unnecessary spaces in Chinese(e.g." = "->"=").
BTW,I created a wiki page in a Chinese minecraft website for this mod.For now it's empty,I will try to write some articles about the mod later,of course some articles be written in Chinese.
Merge pull request #42 from crafteverywhere/patch-2

Updated the zh_CN.lang file,hope to fix the issue #41.